Water-purifier.



J. W. MORRISON.

WATER PURIFIER.

APPLICATION FILED NOV.14, 1908.

938,778. Patented Nov. 2, 1909.

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JAMES W. MORRISON, OF BATAVIA, NE! YORK, ASSIGNOR T0 STEAM APPLIANCEMANUFACTURING COMPANY, OF BATAVIA, NEW YORK, A CORPORATION OF NEW YORK.

WATER-FURT ER,

Specification of Letters Patent.

Application filed November 14, 1908.

Patented Nov. 2, 1909.

Serial No. 462,582.

To all whom it may concern:

Be it known that I, JAMES W. MORRISON, a citizen of the United States,residing at Batavia, in the county of Genesee and State of New York,have invented certain new and useful Improvements in ater-Purifiers, ofwhich the following is a specification.

My invention relates to certain new and useful improvements inmechanical means for purifying or filtering water and particularly thefeed water for boilers; and my invent-ion consists of the parts and theconstructions, arrangements and combinations of parts which I willhereinafter describe and claim.

In the accompanying drawings forming part of this specification and inwhich similar reference characters indicate like parts in the severalviews :Figure 1 is a vertical sectional view of a water purifierembodying my invention, Figs. 2, 3 and 4 represent plan views of thescreen supporting frames.

In the said drawings A, indicates a cylinder which may represent anytank or vessel adapted to contain the water or other fluid to befiltered, said cylinder being of metal or other suitable material andhaving such dimensions as will best adapt it to the particular purposesI have in view.

The cylinder is provided with end heads A which are suitably bolted orotherwise removably secured to flanged portions on the ends of thecylinder; the water or other fluid to be purified is admitted to thecylinder through a pipe at, which in the case of filtering boilerfeed-water, may lead from a.

heater or other preliminary portion of the purifying system, said pipehaving a controlling valve 2.

Vithin the cylinder or tank sand or other suitable granular material llis placed to form a filter bed; in the present instance I show thisgranular filtering material as filling only about three-fourths of theinterior area of the cylinder, thereby leaving sufficient space in thecylinder above the filterbed for the movement of the particles of thegranular material when water is admitted from below to cleanse and flushthe filter, for it is found that when space is thus afforded forflushing purposes, the ebullition of the granular material under thehigh pressure of the water admitted thereto, causes the particles ofmaterial to loosen up and be agitated and exposed to the cleansingaction of the water so that the foreign substances which are adhering tothe filtering In practice, the water from the heater or other sourceenters the cylinder through the pipe at and percolates through thegranular filter bed and'the strainer below the same and finally entersthe pipe 36 and is deliveredtherefrom to the boiler by means of thevalve-controlled pipe 40.

Connecting with the pipe tO is a valvecontrolled pipe 30 through which areverse current of water is admitted to the pipe 36 and thence deliveredupwardly through the lower strainers and the granular filter bed toloosen up and wash the latter, as before described, the loosenedparticles of foreign matter being carried into the reserved space abovethe filter bed and the water thence passing through a strainer disposedin the space above the bed and finally passing out through a blow-offpipe i9 having a controlling valve 48.

A pressure gage, 5, isfitted to the top of the cylinder or vessel andcommunicates with the space above the filter bed to lndlcate a variationin pressure within the filter due to added friction caused fromaccumulation of foreign matter on or 111 the filter bed, thus visuallyindicating when it becomes necessary to reverse the flow of water andcleanse the filter.

The strainers shown in the upper and lower portion of the cylinder, orvessel A may be of the same or different construct-ion and of anywell'known form adapted for my purposes, I prefer, however, to make thestrainers substantially as follows: Suitable frames or spiders, 37 38,are each made with a central hub 0, rings, (Z, c and radial arms f, asshown in Figs? and 4:, and a suitable light, fine wire mesh or otherscreen-material 9, having the property of preventing foreign matter inthe water passing through it, is placed at one side of each of theframes so as to inclose an intermediate clear-water chamber. As the finescreen-material would not of itself possess sufiicient strength tosupport the weight of the filter bed, 41, or the pressure of the water,I reinforce the same by placing between the frames 37, 38, a separatingframe or spider 39 as shown in Fig. 3 said frame 39 comprising inner andouter concentric rings 01, e, and a central hub 0" and radial arms f,said reinforcing frame and the frames 37, 38 being secured together,and, the annular ring d, and

hub 0, of the'separating frame having lateral passages 8-9, whichconnect with the clear-water space between adjacent screens and whichspace is inclosed by the outside band 6, of the separating frame 39. Thescreen frames and separating frame may be joined as a rigid structure bybolting the frames together; this also firmly secures the finescreen-material g at its edges and intermediate portions so that it willbetter resist the weight of the filter-bed and the pressure of water.The blow-'ofi pipe 49 extends between and connects the upper and lowerdouble-strainers before mentioned and is fixed to the lower frame of theupper strainer and the upper frame of the lower strainer, said pipe alsopassing through the hub of the separating frame of the lower strainerand through the discharge pipe 86, upon the upper end of which latterpipe the lower frame 38 of the lower strainer is supported. V

In operation, the water enters the cylinder through the pipe at andpasses down through the granular filter-bed and the strainer materialheld between the frames 3738 and 39, and into the clear-water spaceinclosed by the separating frame 39, and finally passes out through thelateral passages 8 and 9 therein into the pipe 36 for transmission tothe boiler. Vhen the filter is to be cleaned, the water is admitted tothe pipe 30, the valve 3, of which is now open, and flows upwardlythrough 'the pipe, 36, the passages 8 and 9, the strainer material, thefilter bed and the double strainer above the same, and through thelatter and into the blow-off pipe 49, carrying such accumulation offoreign matter as was contained on top of and in the filter bed. Byemploying the double strainer and supporting the lower strainer abovethe bottom of the cylinder as shown, the water is permitted to pass downon the-outer side and up through from the under side, which is notchoked, due to any weight from the filter-bed, thereby greatly reducingfriction and facilitating the separation of foreign substances from thewater.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is 1. In a water purifier, the combination of avessel adapted to receive the water to be purified, a granularfilter-bed therein and partially filling the same, strainers in theupper and lower portions of the vessel one of said strainers underlyingthe filter-bed and the other strainer being supported above the normallevel of said bed, and a pipe extending between the upper and lowerstrainers forming a support for the upper strainer, an inlet pipeleading into the vessel 'above the level of the filter-bed and adischarge pipe receiving the-water which passes through the lowerstralner. V

2. In a water purlfier, the combination of a vessel adapted to receivethe water to be.

purified, said vessel containing a granular filter bed which onlypartially fills it, concentric discharge pipes entering the bottom ofthe vessel, one of said pipes terminating near the bottom of the vesseland the other pipe extending through the filter bed to a point above thesame, and hollow strainers fixed to the upper ends of said pipes, saidpipes having their upper ends in open com munication with the interiorof the strainers.

3. In a water purifier, the combination of a vessel adapted to receivethe water to be purified, said vessel containing a granular filter bedwhich only partiallyfills it, concentric discharge pipes entering thebottom of the vessel, one of said pipes terminating near the bottom ofthe vessel and the other pipe extending through the filter bed to apoint above the same, and hollow strainers fixed to the upper ends ofsaid pipes, said pipes having their upper ends in open communicationwith the interior of the strainers, one of said pipes serving as adischarge for filtered water and also as an inlet for flushing water,and the other pipe serving as a blow-off for accumulated foreign mattercar-' ried by the flushing water.

4. In a water-purifier, the combination with a vessel adapted to receivethe water to be purified, said vessel containing a granular filter-bedwhich 0111 1 partially fills it, and upper and lower dou le-strainers,said upper strainer being disposed in the space above the filter-bed,and said lower strainer underlying the filter-bed, each of saidstrainers having an interior chamber, a discharge pipe for supportingthe lower strainer, and a discharge pipe extending to the upper portionof the filter and supporting the upper strainer.

5. In a water purifier, the combination of a vessel adapted to receivewater to be purified, a filter medium therein, a discharge pipe enteringthe bottom of the vessel and terminating at a point above the same, and

a hollow strainer fixed to the upper end of 6. In a water purifier, thecombination of T a vessel adapted to receive the water to be purified, afilter medium therein, a discharge pipe leading through the bottom ofthe vessel to a point above the same, a strainer to which said pipe isfitted, said strainer including upper and lower open frames andreticulated material and an open frame intermediate of the other frames,said separating frame inclosing a clear water chamber, each of saidframes having concentric rings and one of said rings of the separatingframe and the hub thereof having lateral passages which connect withsaid discharge pipe.

7. In a water purifier, the combination with a discharge pipe, of adouble strainer supported thereon, said strainer consisting of upper andlower and intermediate members each having a central hub and concentricinner and outer rings connected by radial arms and a reticulatedmaterial between said upper and lower and intermediate members; andbolts for rigidly uniting said members, said intermediate member havingits hub-portion and interior ring each provided with radial openingsleading to the open end of the discharge pipe.

In testimony whereof I afiiX my signature in presence of tWo witnesses.

JAMES XV. MORRISON.

lVitnesses ALLEN TILLAPAUGH, ARTHUR ROGERS.

